Power emitted per unit area of a black body is `R " watt/m"^(2)`. At what wavelength will the power radiated by black body be maximum is stefan's constant is `sigma` and Wien's constant is b then.

Options

A. `lambda = ((bsigma)/(R ))^((1)/(4))`
B. `lambda =((b)/(R ))^((1)/(4))`
C. `((bR)/(sigma ))^((1)/(4))=lambda`
D. `lambda=b ((sigma)/(R ))^((1)/(4))`

Answer

D

Explanation

`R=sigmaT^(4) rArr T_(4)=(R )/(sigma)`
`lammbdaT=b`